EP 0068810 A3 19840822 - COLOUR VIDEO SIGNAL PROCESSING APPARATUS
Title (en)
COLOUR VIDEO SIGNAL PROCESSING APPARATUS
Publication
Application
Priority
JP 10168981 A 19810630
Abstract (en)
[origin: US4520386A] A color video signal processing apparatus which utilizes a digital luminance data and first and second color difference signals which are digitized at a first sampling frequency and formed by matrix operation wherein at least one of the first or second color difference data is sampled at a second sampling frequency which comprises the first sampling frequency divided by an integer with the band width of the sample output being limited to a predetermined band width with a digital filter and the luminance and first and second color difference signals which have had their band width limited comprising the color video signal which is to be transmitted.
IPC 1-7
IPC 8 full level
H04N 9/64 (2006.01); H04N 9/65 (2006.01); H04N 9/67 (2006.01); H04N 11/04 (2006.01); H04N 11/10 (2006.01)
CPC (source: EP US)
H04N 9/64 (2013.01 - EP US); H04N 11/04 (2013.01 - EP US)
Citation (search report)
- [A] GB 1580724 A 19801203 - BRITISH BROADCASTING CORP
- [A] GB 2051517 A 19810114 - BRITISH BROADCASTING CORP
Designated contracting state (EPC)
AT DE FR GB IT NL
DOCDB simple family (publication)
US 4520386 A 19850528; AT E25910 T1 19870315; CA 1183253 A 19850226; DE 3275698 D1 19870416; EP 0068810 A2 19830105; EP 0068810 A3 19840822; EP 0068810 B1 19870311; JP H033997 B2 19910121; JP S583491 A 19830110
DOCDB simple family (application)
US 39199282 A 19820625; AT 82303278 T 19820623; CA 405712 A 19820622; DE 3275698 T 19820623; EP 82303278 A 19820623; JP 10168981 A 19810630